[thefz]

You always have the option to not consume fast food, smoke cigarettes, etc.

[triceratops]

We're setting up a battle of will between people and companies so we can feel good about our own self-control when some (most, in many countries) individuals lose that battle. What's the point?

Cigarettes are interesting because we recognized that running society like a car with accelerator and brake smashed down is sub-optimal. There are restrictions on tobacco marketing, consumption taxes, public health campaigns.